
    \foldertitle{setup}{Installing IRIS}{setup/Contents}

	\paragraph{Requirements}

\begin{itemize}
\tightlist
\item
  Matlab R2014a or later.
\end{itemize}

\paragraph{Optional components}

\begin{itemize}
\item
  The Optimization Toolbox is needed to compute the steady state of
  non-linear models, and to run estimation.
\item
  LaTeX is a free typesetting system used to produce PDF reports in
  IRIS.
\end{itemize}

\paragraph{Installing IRIS}

\begin{enumerate}
\def\labelenumi{\arabic{enumi}.}
\item
  Download the latest IRIS zip archive,
  \texttt{IRIS\_Tbx\_YYYYMMDD.zip}, from the download area on
  \texttt{www.iris-toolbox.com}, and save it in a temporary location on
  your disk.
\item
  If you are going to install IRIS in a folder where an older version
  already resides, completely delete the old version first.
\item
  Unzip the archive into a folder on your hard drive, e.g.
  \texttt{C:\textbackslash{}IRIS\_Tbx}. This folder is called the IRIS
  root.
\item
  After installing a new version of IRIS, we recommend that you remove
  all older versions of IRIS from the Matlab search path, and restart
  Matlab.
\end{enumerate}

\paragraph{Getting started}

Each time you want to start working with IRIS, run the following line

\begin{verbatim}
>> addpath C:\IRIS_Tbx; irisstartup
\end{verbatim}

where \texttt{C:\textbackslash{}IRIS\_Tbx} needs to be, obviously,
replaced with the proper IRIS root folder chosen during installation.

Alternatively, you can put the IRIS root folder permanently on the
Matlab seatch path (using the menu File - Set Path), and only run the
\texttt{irisstartup} command at the beginning of each IRIS session.

See also the section on \href{config/Contents}{Starting and quitting
IRIS}.

\paragraph{Syntax highlighting}

You can get the IRIS model files syntax-highlighted. Syntax highlighting
improves enormously the readability of the files: it helps you
understand the model better, and discover typos and mistakes more
quickly.

Add any number of extensions you want to use for model files (such as
\texttt{\textquotesingle{}model\textquotesingle{}} or
\texttt{\textquotesingle{}iris\textquotesingle{}}, there is really no
limitation) to the Matlab editor. Open the menu Home - Preferences,
unfold Editor/Debugger and choose Language. Make sure Matlab is selected
at the top as the language. Use the Add button in the File extensions
panel to associate any number of new extensions with the editor.
Re-start the editor. The IRIS model files will be syntax highlighted
from that moment on.

\paragraph{Third-party components distributed with
IRIS}

\begin{itemize}
\tightlist
\item
  X13-ARIMA-SEATS (formerly X12-ARIMA, X11-ARIMA). Courtesy of the U.S.
  Census Bureau, the X13-ARIMA-SEATS (formerly X12-ARIMA) program is now
  incoporated in, and distributed with IRIS. No extra installation or
  setup is needed.
\end{itemize}



